Jacquard embroidering-machine.



K. KELLER. JAOQUARD EMBROIDERING MACHINE.

APPLICATION FILED APRJI, 1912.

Patented Dec. 23, 1913.

5 SHEETS-SHEET 1.

FIG

Jul/622102" r r W COLUMBIA PLANDGRAPH co wAsmNuToN. 11c.

K. KELLER.

JAGQUARD EMBROIDERING MACHINE. APPLICATION FILED APR.11, 1912.

1,082,228 Patented Dec. 23, 1913.

5 SHEETS-SHEET 2.

FIG .4

1 J I 5 41 10 C q I 0 M: g E

M +IF l W1 mess 9 Inventor 1&1] Keller 6% WW y A-itorney COLUMBIAPLANOGIIAPH cu.,wAsmNm'uN. n. c.

K. KELLER.

JACQUARD EMBROIDERING MACHINE.

APPLICATION FILED APR.11, 1912.

1,082,228, Patentd Dec. 23', 1913.

5 SHEETEr-SHEET 3.

Witnesses [III/611.10.?" WW: K612 Keller %:W /c Q f Attorney K. KELLER.JACQUARD EMBROIDERING MACHINE.

APPLICATION IILED APR.11, 1912.

Patented Dec. 23, 1913.

5 SHEETS-SHEET 4 FIG. 7

fzzuezz [01 Ear] KeJZer Attorlz ey Witnesses g1 MAW COLUMBIA PLANOGRAPHCOQWASHINGTON. n c.

K. KELLER.

JAGQUARD BMBROI-DERING MACEINE.

APPLICATION TILED APRJI, 1912.

Patented Dec. 23, 1913.

5 SHEETS SHBET 6.

FIG 12.

FIG 11 11: W12 for Jfar] Keller 3V (XMQQARM e Azzazn ey COLUMBIAPLANOGRAPN co., WASHINGTON. D. c,

KARL KELLER, OF ARBON, SWITZERLAND.

J ACQUARD EMBROIDERING-MACHINE.

Specification of Letters Patent.

Patented Dec. 23,1913.

Application filed April 11, 1912. Serial No. 690,128

To all whom it may concern Be it known that I, KARL KELLER, a citizen ofthe Swiss Republic, and resident of Arbon, Switzerland, have inventednew and useful Improvements in Jacquard Embroidering-Machines, of whichthe following is a full, clear, and exact specification.

The present invention is based on a new stitch determining, or fabricframe positioning method of jacquard embroidering machines.

The diiference between the present stitch determining method and thehitherto known arrangements consists in the fact that, while using ofthe well known decomposing of the stitch-length into two components, thedetermination of each stitch point within a specified range of work ofthe embroidery is obtained by its two distance components away from afixed zero point or pole position in the jacquard mechanism to which thepositioning or adjusting gear of the same is brought back after eachmovement of the fabric frame, while in systems hith erto known thehorizontal and vertical distances of the stitch points were generallydependent on the last stitch made. Should, for instance, according toFigure 1 of the accompanying drawing, stitches 1 to 6 in sequence bemade within a given field of work, then according to the presentinvention this is done by using a jacquard card perforated in such amanner that all stitch points are successively controlled from theadjusting gear of the jacquard mechanism by their horizontal andvertical distance components from one and the same zero or pole point P.It is advisable in this respect to take care that the jacquard mechanismis temporarily disengaged from the fabric frame so that the latter neednot require to be brought from the stitch point arrived at, back againto the pole point position. Owing to the fact that the zero or polepoint position. for the adjusting strokes in jacquard mechanism is afixed one for a determined field of work of the embroidery, any error inthe stitch position which may have occurred is not transmitted to thefollowing stitches, but owing to the return of the position determiningor adjusting gear of the jacquard mechanism to the fixed pole pointposition,it has no influence on the later following stitches. Apractical construction for carrying out this method would, however,necessitate a great number of stitch length combinations if all stitchpoints for a complicated design were determined from a single polepoint. In order to avoid this, in decomposing the design int-o singlefields of work, the de termination of the stitch points within thesesingle fields of work are preferably obtained by using for each oftheseadistinct pole point position in the gearofjacquard mechanism in such amanner that when the stitch passes from one field of work to another thepole point position is simultaneously changed so that in the new fieldof work the stitch length only need be controlled fro-m itscorresponding pole point. Should, for instance, according to Fig. 2 thestitch points 1 to 6 of a design divided into four fields of work bedetermined by a correspondingly perforated jacquard card, then thestitch points 1 and 3 lying in one field of work will be determined fromthe pole point P of this field of work, while the stitch points 2 and 4of a second field of work will be controlled from its pole point P thestitch point 5 of a third field of work will be controlled from its polepoint P and the stitch point 6 in a fourth field of work from its polepoint P each being determined by its horizontal and vertical components.The pole points P P P and P lying at constant distances one from theother can be, independently of the succession of stitches 1 to 6,automatically changed by a change device in the jacquard mechanism bymeans of additional jacquard needles provided for this purpose. Thedistances of the pole points from each other are so selected that theyare equal to the largest possible stitch length combination.

The mechanism for carrying out this method consists essentially of aposition determining or adjusting gear controlled by the jacquard cardwhich is used to determine the distance components of a stitch pointfrom a pole point without a rigid connection with the fixed fabricframe, whereby the pole point serving continuously for the correction ofthe stitch positions according to the design to be carried out, willeither remain unaltered or will be changed for a neighboring pole pointby a change device controlled by the jacquard card, while after thisposition determining or adjustmentof the jacquard gear to the stitchpoint the fabric frame is brought out of the previous stitch pointposition into the new gear adjusted position by a positive positioningdevice independent of the position determining gear and separate foreach movement component, whereupon the position determining gear againdisengaged, moves back to the starting position corresponding to theprevious pole point.

In the accompanying drawing is illustrated a jacquard-embroideringmachine constructed according to the present invention, which machine isnot only designed for the embroidering operation, but also for thepunching and repeating of jacquard cards. This machine possesses incombination with the jacquard-mechanism a panto graph controlled fabricmoving mechanism, a jacquard-card punching mechanism and a jacquardcard-repeating mechanism in such a manner that the machine can operateon the one hand according to a given jacquardcard as an automaticembroidering machine, as well as a jacquard-card repeating machine withor without simultaneous automatic operation of the embroidering machine,on the other hand when being operated manually, with the use of theposition determining or adjusting gear of the jacquard mechanism, as ahalf automatic embroidering machine, as well as a jacquard-card punchingmachine, whereby the embroidering machine may simultaneously operate asauxiliary machine with automatic fabric moving for allowing the operatorto control or verify the work.

Figs. 1 and 2 show the two embroiderypattern schemes above referred to.Fig. 3, is a diagrammatic front view of a part of an embroideringmachine together with a jacquard apparatus for automatically moving thefabric frame and with a pantograph controlled fabric moving mechanism,according to the present invention. Fig. 4 is a view on a larger scalepartly in vertical section of the position determining and adjustinggear of the jacquard mechanism. Fig. 5 is a plan view, partly ahorizontal section of the selecting and adjusting means with a wheelgear of the jacquard mechanism. Fig. 6 is a section on line mm of Fig.5, together with the jacquard-card for controlling the selectin andadjusting mechanism, whereby the aforesaid wheel gear is alsorepresented in two further sections. Fig. 7 is a front view and Fig. 8 avertical section of the fabric frame positioning mechanism as well asthe pole point changing device. Figs. 9 and 10 show two angle-schemesfor the explanation of the mode of operation of the acquard mechanism.Fig. 11 represents in side-view one of the adjusting means of thepantograph controlled fabric moving mechanism, together with the cardpunching mechanism, whereby the proper embroidering mechanism may at thesame time serve as control embroidering-machine; in this figure is alsoindicated the jacquard-card repeating means for governing the pole pointchanging device. Fig. 12 is an end view of the upper part of Fig. 11.

In Fig. 3, 1 indicates the stationary supporting frame and 2 the fabricframe of a jacquard embroidering machine. The fabric frame 2 has itshorizontal motion imparted to it by the guide-loop 3 carried by a rack 4and engaging with a roller 5 mounted on the fabric frame. The verticalmotion of the fabric frame is effected by a rack 6 parallel to the rack4 which engages by means of a guide-loop 6 with the lever 7 pivoted onthe machine frame 1. The horizontal arm of the lever 7 carries asector-like piece 7 on which is hung up the fabric frame by means of ahorizontal guide 2. (Similar suspension means are arranged at the otherend of the fabric-frame.)

The adjusting means in the jacquard mechanism for producing thehorizontal fabric frame motion correspond exactly as for theconstruction with the adjusting means for the vertical motion; ittherefore sufiices to describe hereinafter only the said first means.lVith the rack 4 (Figs. 3 and 4:) meshes a loosely rotatable toothedwheel 8 for determining the position of the fabric frame, mounted ona'horizonta-lly slidable bar 9 secured against rotation about itslongitudinal axis. The bar 9 is provided at its one end, in Figs. 3 and4t situated to the left, with a female screw by means of which it can bemoved to and fro for a certain amount by a rotary spindle 10 having acor responding worm screw in engagement with said female screw. Thescrew spindle 10 is secured against any axial displacement and receivesan angular oscillating movement around its longitudinal axis by means ofa difierential wheel gear system. This movement is caused by the mediumof a acquard card and is proportional to the distance of thestitch-point to be adjusted from its corresponding zeroor pole-point.Exactly as far as the stitch-point must be apart from its zeroorpole-point in the horizontal direction, the bar 9, together with thecenter of the toothed wheel 8, will be displaced from its initial orzero-point position to the left by the said angular movement of thescrew spindle 10. This axial displacement of bar 9 and wheel 8 takesplace at a time, when the embroidering needles are still in the fabric,the fabric frame 2 being therefore still held fast by the materialpressing members. As the rack 4 cannot be moved, the toothed wheel 8will then roll on the rack a owing to the displacement of its center,and thereby execute a rotating movement in the direction of the arrow11. Thus the adjusting and position determining means of the jacquardmechanism will be actuated in the first line independently of mechanismand the original-card controlled i the fabric frame.

The pivot 12 (Figs. 7 and 8), on which the fabric position determiningwheel 8 is loosely mounted, is fixed in the horizontally sliding bar 9,which latter has an arm 13 perpendicular to its longitudinal axis. Thislatter forms a guide way for a double beveled slide 14, which can bemoved vertically up and down through the bent lever 15 by a cam 16 onthe main shaft 15 of the jacquard mechanism and is designed to producethe positive positioning of the fabric frame. Besides the toothed wheel8 there is mounted on the pivot 12 also loosely movable a hanging downpositioning lever 17, which carries at its lower end the two rollers 18and 19. The distance of the latter from each other is exactly as far asthe slide 14- is wide, so that the middle axis of the lever 17 coincidesexactly with the longitudinal axis of the slide 14 or its guide-way 13,when the slide 14 is pushed into its upper position.

By means of a locking device the rollerlever 17 can be coupled wlth thetoothed wheel '8. In the reinforced nave of the lever 17 are twoopenings 20, serving as a guide for a slide frame 21. This slide framecarries at its one end a fixed locking tooth which is normally kept inengagement with the toothed wheel 8 by a spring 23 (Fig. 7). In thisposition of the slide frame 21 the roller lever 17 is locked or coupledwith the wheel 8; itthus partakes of the above referred to rollingmovement of the wheel 8, so as to swing out pendulunrlike to one side.At the other end the slide frame 21 carries on a pivot a three-armedpawl-lever 2 1, both vertical arms of which are provided with a roller,while the horizontal arm of said lever serves as a controlling pawl. Thelatter is of such a length as to be out of engagement with the toothedwheel 8, when the locking tooth 22 of the slide frame 21 situated on theopposite side of the toothed wheel 8 engages into the said toothed wheel3. By a bent lever 25, receiving its motion also from the main shaft 15of the jacquard mechanism by means of a cam 26 and a lever system 26,the slide frame 21 can be displaced horizontally, whereby the pawl-lever2 1- is brought into engagement with the toothed wheel 8, while thelocking tooth 22 is then disengaged therefrom. The pawl-lever 24 isnormally kept in its middle-position by two traction springs 27 of thesame strength. By one or the other of two controlling levers 28, 29, being actuated directly from the proper jacquard-mechanism, a turningmovement in the one or other direction can be imparted to thethree-armed pawl lever 24:, which ll'lU-VQIHGIlt is so limited by stops2%, that the slide frame 21 when it has been displaced by the lever 25and thereby has brought the pawl arm of the lever 2 1 into engagementwith the wheel 8, and with it the positioning lever 17 will be caused toturn exactly one tooth relatively to the then stopped toothed wheel 8.At the then following return movement of the bent lever 25 the slideframe 21 will be drawn backward again by the action of the spring 23 sothat the toothed wheel 8 will be coupled with the ust adjusted rollerlever 17 by means of the looking tooth 22. The just described means aredesigned to operate the transition from one pole-point to another, as ithas been eX- plained with reference to Fig. 2, for instance from P to Pfor the execution of the stitch 2.

[is already has been said above in course of the explanation of thestitch determining method, the jacquard mechanism gives by itspunch-hole-combinations in the jacquard earl the horizontal and thevertical distance of each stitch-point from a determined polepoint.After this stitel1-point has been determined by the position determiningor adjusting means of the jacquard mechanism, the fabric frame will bedrawn on out of its preceding position, as will be fully describedhereinafter, so that it takes up the determined stitch point position.After the fabric frame has then been stopped for the time of the stitchoperation, the adjusting mechanism of the jacquard apparatus returnsidle again to its former zero position, for being then controlled againfor a new stitch determination, if the new controlling adjustment shallgo out from the same pole-point. If however the pole point be changed,then the zero-position changing device represented in Figs. 7 and 8 willbe first actuated by one of two jacquard-needles, whereupon the distanceof the new stitch-point from this last pole-point or zeroposition willbe determined or adjusted by the operation of proper jacquard mechanism.

From the above it may be seen that the adjusting gear of the jacquardmechanism must make a greater or less movement of oscillation in thesame direction away from the same starting position according to theparticular stitch-point distance.

In Figs. 5 and 6 the selecting and adjusting means of the jacquardmechanism are illustrated, and here the same constructional members areused for the horizontal and vertical movements of the fabric frame.

in Fig. 6, 30 is the card drum provided with longitudinal slots whichhas the known swinging movement imparted to it. Owing to this movement,those of the jacquard needles 31 which have not engaged a hole in thejacquard card 32 will be pushed back and the needle rods 33 connected tothem will. be brought out of range of a lifting bar 34:. The latter isperiodically lifted by means of a cam of the main shaft of the jacquardmechanism and is of such a length that all of the needle rods 33 notpushed back will be caught by it. On each needle rod 33 is hung apushing rod 35 by means of two pins, which is guided at its lower end bymeans of a separate guide-link 36. Each time four pushing bars 35 lyingneXt to one another in said bar system operate on a common gradationlever 37 which is mounted on the shaft 38 and has on its outer end asegment 37* provided with five notches in which a stop bar 39 mounted onpivots may be engaged. For determining the stitch length in the verticaldirection as well as in the horizontal direction, twelve jacquardneedles and a corresponding number of needle rods 33 and bars 35 areeach time provided so that for each component direction three gradationlevers 37 are provided, see plan view Fig. 5, wherein the gradationlever for one component direction are situated on one side and those forthe other component direction on the other side of the middle line m-m.On each gradation lever 37 four controlling pins are arranged at suchdistances one from the other that the pushing bars 35 engaging said pinsmay swing the gradation lever 37 upward from the starting position shownin the ratio 1:2:3zt, when the needle rods 33 corresponding to saidpushing bars 35 are lifted by the lifting bar 34:. Each of the threegradation levers 3? for one component direction operates through achange speed gear on double dilferential wheel gear e0 which is mountedon the screw spindle 10 (see also Figs. 3 and he change speed gearbetween the gradation levers and the differential mechanism 40 is soproportioned that each gradation lever imparts to said spindle 10 anangular movement in the same direction, the amount of which will dependaccording to whether the one or other of the needle rods 33 are liftedby the lifting bar 3% and in this example is equal to the number ofunits indicated in Fig. 5 within parentheses beside the controlling pinsof the gradation levers. As shown in plan view in Fig. 5 and thecorresponding sectional views in Fig. 6, the first gradation lever ofeach side (away from the middle line mm of the jacquard mechanism) isconnected by means of a toothed segment a with a double toothed wheel Z)mounted on an intermediate shaft 4:1 and by this with a toothed disk 0on one of the main wheels of the differential wheel mechanism 40 for thetransmitting of the movement in the ratio of 1:1, and further the thirdgradation lever is connected by means of a toothed segment a with adouble intermediate wheel 6 on the shaft a1 and by this with a toothedsegment 0 on the supporting journal cl of the one planetary wheel of thewheel mechanism to for transmitting the movement in greater ratio, whilethe second gradation lever is connected by means of a toothed segment adirectly with a toothed segment 0 on the supporting journal (Z of theother planetary wheel of the wheel mechanism 0 for a less degree oftransmission ratio, whereby no intermediate wheel is necessary betweenthe parts (4 a as the middle double bevel wheel of the difi'erentialwheel mechanism 40 moves in the opposite direction to the two outsidewheels (see arrows in Fig. 5). In the plan view of Fig. 5 the screwspindle 10 is shown moved down and laid in one plane with the shafts 38and ll for the sake of clearness, while actually it lies above theseshafts as may be seen from Figs. 3, at and 6. The three gradation levers37 for the vertical direction, as also the three gradation levers 37 forthe horizontal direction of the stitch length determining arrangement,are arranged on the same shaft 38 and in the same manner alltransmitting members for both directions are mounted on the commonintermediate shaft a1, there of course being two screw spindles 10.Accord ing to the particular stitch length, one, two or all threegradation levers will be brought by one of the four rods 35 engagingwith them into four difierentpositions so that the corresponding spindle10 is turned from the zero position to a maximum stroke limit through124 movement units. As movement unit that angular movement of thespindle is taken which occurs when the rod engaging the pin (1) of thefirst gradation lever 37 is lifted under the control of its operativeneedle rod 33 by the operation of the lifting bar 3%. After thegradation levers 37 have been positioned, any errors in the positioningof the levers will be compensated for by the engagement of the stop bar39 and the gradation levers will be themselves arrested so that thepushing bars 35 may again move back.

The mode of operation of the described jacquard mechanism is as follows:Consider the case in which it is desired to make a succession ofstitches 1, 2, 3 according to Fig. 2 and for instance the heightadjustment of the fabric frame may be explained. A row of holes orapertures is provided in the jacquard card for the vertical componentlength of the stitch point 1 which gives the distance a? from the Zeroposition P If this corresponds to, for instance 42 of the 125 movementunits which are represented by the distance from P to P", then simultaneously on the third gradation lever 37 (in Fig. the outer one) theouter pushing rod 35 corresponding to 25 units, on the second gradationlever the third rod 35 corresponding to 15 units, and on the firstgradation lever the second rod 35 corresponding to 2 units, will comeinto operation, that is to say the second, the seventh and the ninthjacquard needle (reckoned from the middle of the jacquard mechanism)will engage an aperture in the card 82. The remaining needles and needlebars 33 will be pushed on the following upward movement of the liftingbar 34 only the aforesaid pushing bars will be lifted by means of theirneedle bars 85. Owing to the subsequent engagement of the stop bar 39with the gradation levers 37 these are fixed exactly in their selectionposition, whereupon the pushing rods 35 return to their normal. positionwhile the lifting bar 34.- is moved downward. Then the card drum 30swings back toward the left (Fig. 6) and simultaneously draws the pushedback needle bars by means of a rail 42 (Fig. 6) again into their normalposition by means of nose projections on them. After this the jacquarddrum will be turned one step to present a new series of holes and thecycle of operations will again repeat in the same manner for the nextstitch.

By the described angular movement of the three gradation levers 37, thecorresponding spindle 10 is meanwhile turned through 12 movement units.The magnitude of this movement units and the degree of angularity of thethreading of the spindle 10 are so proportioned that the sidewisedisplacement of the sliding bar 9 (Fig. 4) screwed on the thread of thespindle 10 exactly corresponds to the corresponding stitch distance ofthe pattern or to the desired fabric frame displacement. The bar 9 (theupper one in Fig. at) has thereby exactly been displaced a distancetoward the left corresponding to the distance marked in Fig. 2. As therack 6 is still held fast, the position determining wheel 8 will turn inthe direction of the arrow 11 about its own axis and will displace theroller lever 17 (Figs. 7 and 8) coupled with it, out of its middleposition toward the right through an angle a into the position Iaccording to Fig. 9. The fabric frame will now be released by the fabricpresser device and the double wedge positioning slide 14 will be forcedupward by the bent lever 15. As the thread on the spindle 10 isself-locking the pivotal point of the wheel 8 cannot be displacedsidewise and the roller lever 17 turns the toothed wheel 8 exactlythrough an angle or back into the middle position. Therefore the rack 6(Fig. 4t) engaging therewith will be moved toward the left and will, bymeans of the bell crank lever 7, dis- )lace the fabric frame downward sothat the embroidering needles being at rest will have an upward movementrelatively to the fabric frame equal to the distance 00 (Fig. 2) fromthe zero position P For the formation of the stitch the fabric frame isheld by the fabric presser device or a special stop device and the bentlever 15 moves back the double wedge positioning slide 14 into itsnormal position. The position determining lever 17 and the positiondetermining wheel 8 are thereby again freed and the gradation levers 37of the adjusting gear and together with them the screw spindle 10 willalso be brought back into their starting position. This return of partsis obtained in that, the stop bar 39 (Fig. 6) having released thegradation levers, a tensioned springit is the spring 61 indicated inFig. 11 turns back the spindle 10 until the gradation levers are broughtback into their normal position. The turning back of the spindle 10causes also the sliding bar 9 1 to be moved backward to the right intoits initial position so that the rack 6 being at rest, the wheel 8 andthe roller lever 17 will be turned from the middle position toward theleft through an angle 6 equal to a (Fig. 9) into the position H. Duringthis time the determination of the second stitch 2 has been pre pared bythe card drum 30 (Fig. (3). This is determined from the base of the zeroposition P in the vertical direction by the vertical distance componentg (Fig. 2) and this, for instance, may consist of 14: units. These aredetermined by the fourth and the sixth jacquard needle and consequentlythe two needle bars corresponding to these needles are left in theoperative position. Further, the corresponding series of holes in thejacquard fard also indicates that the zero position has been changedfrom P to P For this purpose two additional jacquard needles arearranged to lie next to the twelve jacquard needles for the stitchlength components of one direction, these additional needles beingconnected to corresponding needle bars, which are indicated by 107 inFig. 11. Only one of these two additional needles comes into operationat one time; by one of these the zero position is displaced upward(respectively to the right for the sidewise direction) and by the otherdownward (respectively toward the left for the sidewise direction). Theneedle bars of these two additional needles (four in all) are lifted bya separate independently controlled lifting bar-this is indicated by 105in Fig. 11 and operate each by means of a lever system (106, 92, 93 inFig. 11) directly on the controlling levers 28 and 29 (Fig. 7).

In the adopted example in which the zero position is changed from P to Pupward, the lever 28 is set into operation by the correspondingadditional jacquard needle and this takes place shortly before thepushing rods 35 for the stitch length determination are lifted and whenthe horizontal bar 9 is still in its initial position. Slightlypreviously also the slide frame 21 has been displaced toward the right(Fig. 7) by means of the bent lever 25, and thus the locking tooth 22will be coupled in the new position with the wheel 8 by the returninglocking tooth 22 when the bent lever 25 moves back. The toothing of thewheel 8 is so chosen that the toot-h division corresponds exactly to thedistance between the adjacent zero positions one from the other, that isto say, is equal to 125 movement units. The roller lever 17 is therebyturned from the position 11 (Fig. 9) through an angle 7 equal to 125units into the position III. Immediately the locking tooth 22 hascoupled the roller lever 17 with the wheel 8 in the new position, thepushing rods 35 for the stitch length P to 2 equal to let units will belifted and the bar 9 will be pulled toward the left by a correspondingamount. The roller lever 17 owing to the rolling movement of the wheel 8will thereby be turned farther toward the right into the position TVthrough an angle 8 equal to 14 units. From this latter position theroller lever 17 with the wheel 8 will be forced into the middle positionby means of the double wedge positioning slide 14 now moving upward, therack 6 will be displaced toward the left and the fabric frame will be somoved as to coincide with the stitch point 2, Fig. 2. As may be seenfrom Fig. 9, this distance corresponds to 125 plus 14 minus 12 equals 97units and is equal to the distance component of the two stitch points 1and 2 (Fig. 2) from one another.

Immediately the fabric frame is stopped at the stitch point 2 the doublewedge slide 1% will again be moved downward and the bar 9 by theoperation of the above mentioned spring (61 in Fig. 11) on the threadedspindle 10 will be moved back toward the right by the previouslymentioned let units. The roller levers 17 will thereby be turned fromthe middle position through an angle a into the position V (Fig. 10).For the stitch point 3 (Fig. 2) the jacquard card has a series of holesor apertures which gives the distance component 2 say equal to 25 unitsand the change of zero position from P to P For said component a theninth jacquard needle has a hole in the jacquard card presented to it sothat only the third gradation lever will be lifted and for the change ofzero position downward the corresponding additional jacquard needle willcontrol the controlling lever 29 (Fig. 7). Thus, according to the samecycle of operations as has been described above, the controlling lever29 turns the roller lever 17 toward the left through an angle Q equal to125 units (Fig. 10) into the position V1, whereupon the adjusting gearof the jacquard mechanism will displace the bar 9 through the said 25units toward the left and will turn the roller lever 17 through theangle n into the position VII, and afterward the double wedge slide 14:turns the wheel 8 toward the left through the distance of this latterposition from the middle position, while the rack 6 is pushed toward theright so that the fabric frame is moved upward, as compared with theembroidering needles downward to coincide with the stitch point 3 (Fig.2). From Fig. 10 may be seen that the distance 6 of the position VIIfrom the middle position is equal to it plus 125 minus 25 equals 11%units which corresponds to the distance component of the stitch point 2from the stitch point 3 in Fig. 2. For the next following stitch, thebar 9 will first be shifted toward the right into its initial positionby means of the action of the restoring spring on the threaded spindle10 and the roller lever 17 will be turned through the last 25 unitstoward the left, from which position the next stitch will then bedetermined.

From the above it is directly evident that for each stitch determinationthe positioning or roller lever 17 makes three consecutive movements.First toward the left out of the middle position through a distanceequal to the distance component of the previous stitch point from theZero position, from here, when the zero position is changed through adistance of 125 units either to the right or to the left and thenthrough the new stitch point distance from the zero position toward theright. The distance of this last position of the roller lever from themiddle position will give the fabric frame displacement and this lattertakes place in the upward direction when the last position of the rollerlever was to the left from the middle position. In other cases theopposite will take place. With reference to the jacquard adjusting gearfor the stitch length determination, it may be further mentioned thatapart from the above described arrangement a greater or less number ofpushing bars may engage with the so-called gradation levers 3'7.

To the left hand side of the above described acqua-rd mechanism will bearranged the pattern board 44 (Fig. 3) as usual in pa-ntograph machines,on which the pattern design for the embroidery to be carried out on themachine is secured. front of this a pantograph 13 is pivoted at thepoint 13 on the machine frame 1 to be movable in the well known mannerand all the movements of the guide pin of the pantograph will betransferred on a correspondingly smaller scale to a roller 45 of thepantograph-parallelogram. This roller engages on the one hand with ahorizontal guide part 46 of a vertically movable rack 47 and on theother hand with a vertically arranged, horizontally movable guide piece49 the horizontal movement of which is transmitted by means of aflexible tension member, for instance a chain or asteel ribbon, to avertically movable rack 5-0 which is arranged parallel to the rack at.The rack movements consequent on the opera tion of the pantograph 4-3corresponding to the horizontal and vertical distance components of thestitch points on the pattern from a normal or zero position may betransmitted to the screw spindles 10 in the manner to be described belowby a positioning mechanism and to this end the rack 47 is connected by apositioning mechanism with one spindle 10 and the rack 50 by anotherpositioning mechanism with the other spindle 10. The construction of thesaid two positioning mechanisms is the same. In Figs. 11 and 12 isrepresented on alarger scale the positioning mechanism which connectsthe rack 47 with the respective screw spindle 10. In Fig. 11, 47indicates the rack represented schematically in Fig. 3, which followsthe up and down movement of the pantograph. lVith this rack engages atoothed wheel 48, rotatably mounted on a slide bar 52 movable inparallel direction to the rack 47 (Fig. 12). The wheel 4-8 can be lockedon the bar 52 by means of a locking device, so that it cannot rotate anymore. If then a vertical displacement of the rack 4-7 takes place, thismovement must be transferred by the same amount and in the samedirection to the bar 52. The bar 52 carries a lateral pivot 53, on whichis pivoted the swinging lever 5a. The latter is provided at its lowerpart with a sloping face and can be swung out of the position shown tothe right by a rod 57 engaging with a roller 56 on said lever 54. Thisis produced by the action of a grooved cam 58 carried by the rotary mainshaft 102. As soon as the swinging lever o l is moved to the right, aroller 60, which is pivoted on a two armed lever 59 and which has beenpressed against the lower end of the bar 5-2 at the preceding movementof the swinging lever 54; to the left, is freed and the lever 59 isdrawn toward the stop 62 by the traction of the spindle return spring(31. The left arm of the lever 59 is provided with a roller 63 locatedin a guideway of a rack Get. The latter engages with a pinion 65fastened on the respective screw-spindle 10 (see also Fig. hen the rack64 strikes against the stop 62, the screw spindle 10 will be in itsdead-point position and it can then be turned out of this position tothe right by the descending rack 6-l for the amount of the maximumstitch-length which is of together 125 units of movement in the adoptedexample.

As has already been said, the toothed wheel -28 is normally locked upwith the bar 52 by a locking device. The latter serves at the same timeas a pawl shifting device and has for its object to shift the toothedwheel 48 together with the bar 52 upwanl or downward. relatively to therack a? for an amount corresponding to the maximum stitch-length oftogether 125 units of movement, when the movement produced by thepantograph is of such an extent, that it exceeds the adopted maximumstitch-length. The rack 47 can be vertically displaced for the whole wayproportional to the total height of the embroidery pattern, the toothedwheel 48 engaging therewith, however, together with the bar will bedisplaced upward or downward for each movement exceeding upward ordownward the adopted maximum stitch -length, with the aid of automaticmeans arranged to shift it for the length equal. to this adopted maximumstitchlength. This will be done as follows: On the upper part of the bar52 a slide 72 is movably guided upward and downward. This latter carriesat the top a locking tooth 73, engaging normally with the toothed wheel4 8 under the influence of a spring 7 By a bent lever 75 the slide 72can be lifted so that the locking tooth 7 3 is brought out of engagementwith the toothed wheel 4-8. This is effected by a pushing bar 76actuated periodically by means of a bent lever 77 and a roller rod 78from a cam of the main shaft 102. Diametrieally opposite the loclo ingtooth 73 relatively to the toothed wheel 4.8 is located a two-armed pawllever 79, retatably mounted on the slide This pawl lever only engageswith the toothed wheel 48, when on lifting the slide 72 the lockingtooth 73 is removed from the tc th of the wheel 4:8. The pawl lever 79normally kept in the middle position by two equally strong springs (notshown) acting against each other, so that it is obliged to engage between two teeth of the wheel 49-, when the locking teeth 73 isdisengaged from the latter. The pawl lever 79, when being ongaged intothe wheel 4-8, can be moved from its middle position for a certaindistance to the left or to the right, which results in an angularmovement of the toothed wheel 48, whereby, th e rack 47 being kept fast,the bar carrying the toothed wheel will be displaced upward or downwardfor the correspond ing amount. The pawl lever 19 is turn it to the oneor to the other side by means if a slotted rod 80 or a, similar rod 8].acaoroing as one or the other of these rods is coupled with the pawllever 79, whereby the drive of the slotted rods 8-0, 81 is ope atcd by athree armed lever 82 from a groove in the cam 58 of the main-shaft 102.The coupling of the pawl lever 7 9 with one or the other slotted rods or81 is operated by two locks 83, 8a slidably guided in the pawl lever 79.Each of these locks is connected with a lever 85 or 86, pivoted on aprojection of the bar 52 and having at their lower end a projecting stopnose. The levers 85 and 86 possess an unequal length and have an exactlylimited space between the stop faces of the lower noses, into which astop lever 8'? can be engaged. The latter has an oscillating movementimparted to it from the main shaft 102 by means of a grooved cam 117(Fig. 12). If the bar 52 occupies such a position relatively to the stoplever 87, that the latter does not strike the stop noses of the levers85, 86 when it is actuated, then these latter will not be moved out oftheir position. On the contrary, if the bar 52 has been displaced so farupward or downward that the nose of one of the levers 85, 86 is reachedby the stop lever 87 on its movement, then the lock 83 or 8 1 isdisplaced parallel to the axis of the pawl lever 79 and put into theslot of one of the rods 80, 81, so that the pawl lever 7 9 partakes ofthe subsequent sidewise-movement of the respective rod 80 or 81 andshifts the toothed wheel 18 in such a direction, that the rack 17 beingkept fast, the bar 52 will again be brought back.

The above described operation is trans ferred on the one hand to thecorresponding screw spindle 10 of the jacquard mechanism for thedisplacement of the fabric frame, and on the other hand to a stitchdetermining drum 66 of a known kind for a card punching mechanism. Thetransferring mechanism which is necessary for this purpose isrepresented schematically in Fig. 11.

The above mentioned pawl lever 7 9 carries at its upper end a roller 88.If the said lever swings to the right at its upper end, it meets with abar 89 provided with a stop piece, which bar operates the controllinglever 28 and the upper roller of the threearmed pawl lever 2 1 of thepole-point changing device of the acquard mechanism, by means of a bentlever 90, a link 91, a lower bent lever 92 and the connecting rod 93. Ifthe pawl lever 7 9 swings at its upper end to the left, it acts upon asecond pushing bar 89 similar in all respects to the bar 89, and whichoperates the controlling lever 29 and the lower roller of the abovenamed three armed pawl lever 24 by a lever system of the same kind (notshown). To

the link 91 mentioned before is also attached a bent lever 94, whichactuates by its upper end a slide bar 95. This latter slides at itsfront end in a vertically movable cross piece 96 as it is usuallyemployed in jacquard punching machines. The cross piece 96 is providedwith a series of guide holes for a row of punches 97, each of whichpresents a head 98. One of these punches belongs to the said slide bar95 and a second one to a similar, not shown slide bar, which, like thefirst one, but by the bar 89, is dependent on the pawl lever 7 9, whilethe other punches serve also for the punching of the card but accordingto the different stitch lengths which are inferior to the adoptedmaximum stitch length. The cross piece 96 receives an up and downmovement from a cam disk 100 being actuated by the main shaft 102through suitable intermediate means. If any one of the slide bars 95 isin the position shown, the corresponding punch 97 can give way upward atthe going down of the cross piece 96 and is not pressed down upon thejacquard card 101 passing under the punches. If, on the contrary, thesaid slide bar 95 is pushed to the left, it puts itself with its forwardend above the corresponding punch 97, so that the latter is pressed downat the subs quent downward movement of the cross piece 96 and punches ahole through the jacquard card 101.

The two outermost slide bars 95 serve, as is seen from the preceding, tocontrol the punching of holes in the card for indicating any occurringpole-pointchange in the jacquard mechanism. The remaining slide bars 95serve to control the punching for all the stitch lengths inferior to theadopted maximum stitch length and taken from the same pole-point. Forthis purpose the last named slide bars 95 are connected each with a bentlever 68 having a jacquard needle 67 opposite the stitch-determiningdrum 66 and carrying an upwardly projecting arm 68 being under the pullof a spring 69 in contact with a common cross roller 70 on a stop bar70, which is connected to a bent lever 71 and is controlled through thislatter by a cam 103 on the shaft 102. At each revolution of the shaft102 the cam 103 releases the bent levers 68 by means of the stop bar 70,in such a manner that the levers are swung out under the control oftheir springs 69, for the purpose of bringing their needles 67 towardthe drum 66. As the circumference of the drum 66 has holes and slots inthe manner shown in its development at 66 it will be seen that if forexample a hole of said drum is presented to the needle 67 of one of thesaid bent levers 68, the latter will be capable of executing asufiicient oscillating movement to move the corresponding slide bar 95forward over the corresponding punch 97 and to thus couple this latterwith the cross piece 96, so that on the subsequent downward movement ofthe cross piece 96 under the action of the cam disk 100, a correspondinghole is punched in the jacquard card 101. The hole and slot arrangementof the stitch determining drum 66 for obtaining a very great number ofstitch combinations is substantially known (see the development 66"). Inone part of the drum circumference are situated the unit stitch holes,in an adjacent part the stitch slots for five units and farther on thestitch slots for 25, 50, and 100 units, so that, if, for instance thedrum 66 is opposite the needles 67 along the line 00, there is obtaineda stitch length of at units, while along the line 00 a stitch length of14 units. along the line m a stitch length of 25 units, along the line00 a stitch length of -l-2 units, and so on, is obtained.

During the punching operation the proper jacquard-mechanism is at rest.But also during the working of the jacquard mechanism together with theembroidering ma chine the described punching mechanism can be set intoaction, for the purpose of getting a copy of an original acquard card.This will be done by means of a known repeating mechanism. lVith the aidthereof there may be obtained the locking of the punches 97 in themovable cross piece 96 in a known manner in dependence of the punchedpattern card 32 by lifting the needle bars 33, 107 (Fig. 11) by means ofthe lifting bar 105 separate from the lifting bar 34: (Fig. 6). Amongthese needle bars the outermost 107 on both sides are dependent on thepawl lever 79 by means of two corresponding pushing rods 106 and thelever system 92, 91, 90, while the other needle bars 33 are those which,by the pushing rods 35, engage with the gradation levers 37 in themanner described above with respect to Fig. 6, said gradation leversoperating, when controlled by one of the corresponding acquardneedles,the respective screw spindle 10 and therefore the stitch determiningdrum 66 fixed thereto. The pushing rods 106 are provided at the top witha slot, in which can slide fr ely a pin on the levers 92, if the cardpunching mechanism is controlled manually by means of the pantographwith respect to the exceeding of the adopted maximum stitch length (polepoint changing) and to the unit stitch lengths.

The operation of the card punching mechanism takes place completelyautomatically and the activity of the einbroiderer consists solely inthe operation of following with the pantograph needle the stitch pointsof the pattern-design fastened on the pattern-board a l. For the sake ofsimplicity, only the ad justing and transmitting means for the verticalcomponent direction may be considered, which means are controlled by thepanto graph by means of the rack 17 and the wheel 48 (Fig. 3), as forthe horizontal component direction similar adjusting and transmittingmeans are provided, but these are moved by means of the rack 50 and thewheel 51. On a vertical displacement of the pantograph the rack 17 (Fig.3) follows this movement of the pantograph in a corresponding proportionand carries by the locked wheel 48 (Figs. 11 and 12) the vertical bar 52along with it for the same amount. During this time the swinging lever5st is swung out to the right and the two armed lever 59 is drawn towardthe stop 62 by the spring 61. Besides, the roller 60 or its pivot hasalso been displaced laterally in the lever 59 (from the position shownin Fig. 12 to the left) and this positively by means of a lever 109,controlled by a cam 112 of the main shaft 102 through the medium of aconvenient lever system. Consequently, the bar 52 is freely movable inthe vertical direction and cannot strike against the roller 60. Now therack 47 operated manually by the pantograph is stopped for thesubsequent operations and this by a locking lever 110 (Fig. 11) with theaid of the spring 111. As soon as this has been done, the stop lever 87(Fig. 12) makes a movement to the left and strikes against the lowerstop nose of one or the other lever or 86, when the bar 52 has beenshifted upward or downward over a stroke exceeding the adopted maximumstitch length. Thereby the pawl lever 79 is coupled with one of the twoslotted rods 80, 81, and, after the locking tooth 73 has been releasedshortly before by its controlling mechanism 75, 7 6, 77, 78 and the pawllever 79 has been engaged into the wheel 48, the coupled rod 80 or 81turns the pawl lever 7 9 and with it the toothed wheel 18 under theaction of the lever 82 to the left or to the right and thereby bringsback the vertical bar 52, the rack 47 being kept fast, for an extentcorresponding to the adopted maximum stitch length, so that it standsout of its zeroposition only by the amount for which its stroke exceedsthe stroke corresponding to the maximum stitch length. At the same timeas the aforesaid return movement of the bar 52 effected, the parts 89,90, 91, 92, 93, 28, produce a corresponding displacement of the rollerlever 17 relatively to the toothed wheel 8 in the positioning device ofthe jacquard mechanism, after the adjustment of which. the slide 14:effects by its action upon the roller lever 17 the positioning of thefabric frame to the desired stitch point. Thereupon the slide 72 ismoved downward and locks by means of the locking tooth 7 3 the toothedwheel 13 in its new position with the bar 52, while the pawl lever 7 9leaves at the same time the teeth. of the wheel 41:3 and can, when thecorresponding hole is punched in the jacquard card, swing back again toitsiniddle position at the return stroke of the slotted rod 80 or 81.During these operations the roller 60 has been brought into itsoperative position by the lever 109, that is to say between the lowerend of the vertical bar 5: and the sloping face 55 of the swinging lever54-. 1f the swinging lever 54 is then moved to the left during therotation of the main shaft 102 it engages the roller 60 and presses itagainst the lower stop faceof the vertical bar 52. T hereby the rack 6ais moved from its position of rest downward and the screw spindle 10with the stitch determining drum 66 is rotated to the right for aproportional amount by the toothed wheel meshing with said rack. Now thecam 103 on the shaft 102 releases the lever system 70, 71 and theneedles 67 of the levers 68 will immediately swing toward the stitchdetermining drum 66 under the pull of the springs 69, while in themeantime the fabric frame has been positioned by the describedpositioning means according to the adjusting stroke of the screw spindle10 in the controlling mechanism of the jacquard work. Meanwhile theholes for the pole-point change have also been punched in the jacquardcard to be repeated, as well as the holes for the desired stitch lengthcombination, owing to the fact that one or the other of the slide bars95 operated by the parts 89, 90, 91, 94;, and one or the other orseveral of the slide bars 95 controlled by the drum 66 have caused thecoupling of the corresponding punches 97 with the movable cross piece 96actuated by the rotating cam 100. its soon as this has been done, theswinging lever 54.- (Fig. 11) is moved to the right and the roller 60drawn to the left (Fig. 12). At the same time the locking of the rack 47is taken up as the le ver 110 is turned against the action of the spring111, and the pantograph 4:3 is freed again for the adjusting operationof a new stitch, the rack at? and the vertical bar 52 connectedtherewith being disconnected from the screw spindle 10.

W hat I claim is:

1. In embroidering machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component directicn a fabric framepositioning gear norally in a zero position, loose interconnecting meansbetween said gear and the fabric frame, means for adjusting saidpositioning gear according to the desired stitch length from its zeroposition independently of the fabric frame, selecting means forcontrolling sait. adjusting means,a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear determined position, and a change device in combination with saidpositioning gear for causing an additional adjustment thereof OTBI anextent corresponding to an adopted maximum stitch length in view of anexchange of its actual zero position with another Zero position, whenthe desired stitch length exceeds said maximum limit, substantially asdescribed.

2. In etrbroidering machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component direction a fabric framepositioning gear normally in a Zero position, loose interconnectingmeans between said gear and the fabric frame, means for adjusting saidpositioning gear according to the desired stitch length from its zeroposition, independently of the fabric frame, selecting means forcontrolling said adjusting means, a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear determined position, an auto atic return device for restoring saidadjusting means and positioning gear to their Zero position after thefabric frame having been positioned, and a change device in combinationwith said positioning gear for causing an additional adjustment thereofover an extent corresponding to an adopted maximum stitch length in riewof an exchange of its actual zero position with another zero position,when the desired stitch length exceeds said maximum limit, substantiallyas described.

3. In embroidering machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component direction a fabric framepositioning gear normally in a Zero position, loose interconnectingmeans between said gear and the fabric fra e, means for adjusting saidpositioning gear according to the desired stitch length from its Zeroposition, independently of the fabric frame, selecting means forcontrolling said adjusting means, a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear deter mined position, an automatic return device for restoring saidadjusting means and positioning gear to their zero position after thefabric frame having been positioned, and a jacquard card controlledchange device in combination with said positioning gear for causing anadditional adjustment thereof over an extent corresponding to an adoptedmaximum stitch length in view of an exchange of its actual Zero positionwith another Zero position, when the desired stitch length exceeds saidmaximum limit, substantially as described.

a. In embroide 'ing machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component direction a fabric positiondetermining rotary toothed wheel normally in a zero position, a rackconnected to the fabric frame and in termeshing with said toothed wheel,a slidable bar carrying said toothed wheel, a rotary adjusting spindle,a screw device connecting said bar and spindle and arranged to produce asliding motion of the bar when the spindle is rotated, an adjustingwheel gearing for imparting to said spindle a variable rotating movementaccording to the desired stitch length, selecting means for controllingsaid adjusting wheel gearing, a jacquard card for controlling saidselecting means, a positioning lever connected to said fabric positiondetermining wheel as to partake of its adjusting movement, a positioningmember arranged to coiiperate with said positioning lever and to bringit back to its starting or Zero position, togethe* with said wheel, inorder to position the fabric frame by means of said rack, and automaticdriving means for positively actuating said positioning member,substantially as described.

5. ln embroidering machines, a jacquard. mechanism for moving the fabricframe, comprising for each stitch component direction a fabric positiondetermining rotary toothed wheel normally in a. zero position, a rackconnected to the fabric frame and intermeshing with said toothed wheel,a slidable bar carrying said toothed wheel, a rotary adjusting spindle,a screw device connecting said bar and spindle and arranged to produce asliding motion of the bar when the spindle is rotated, an adjustingwheel gearing for imparting to said spindle a variable rotating movementaccording to the desired stitch length, selecting means for controllingsaid adjusting wheel gearing, a jacquard card for controlling saidselecting means, a positioning lever combined with said fabric positiondetermining wheel, releasable connecting means for coupling togethersaid wheel and positioning lever, de signed to allow said positioninglever to be moved relatively to said fabric position determining wheel,a positioning member arranged to cooperate with said positioning leverand to bring it back to its starting or zero position, together withsaid wheel, in order to position the fabric frame by means of said rack,and automatic driving means for positively actuating said positioningmember, substantially as described.

6. In embroidering machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component direction a fabric positiondetermining rotary toothed wheel normally in a zero position, a rackconnected to the fabric frame and intermeshing with said toothed wheel,a slidable bar carrying said toothed wheel, a rotary adjusting spindle,a screw device connecting said bar and spindle and arranged to produce asliding motion of the bar when the spindle is rotated, an adjustingwheel gearing for imparting to said spindle a variable rotating movementaccording to the desired stitch length, selecting means for controllingsaid adjusting wheel gearing, a jacquard card for controlling saidselecting means, a positioning lever combined with said fabric positiondetermining wheel, a locking slide on said positioning lever fordetachably con' necting it with said wheel, means for controlling saidlocking slide to cause disconnection between said wheel and lever, apawl device arranged to be engaged with said fabric position determiningwheel when the po sitioning lever is disconnected from said wheel, meansfor actuating said pawl device to cause it to move the positioning leverrelatively to the fabric position determining wheel when it is engagedwith the latter, a po sitioning member arranged to cooperate with saidpositioning lever and to bring it back to its starting or zero position,together with said wheel, in order to position the fabric frame by meansof said rack, and automatic driving means for positively actuating saidpositioning member, substantially as described.

7. In embroidering machines, a jacquard mechanism for moving the fabricframe, comprising for each stitch component direction a fabric positiondetermining rotary toothed wheel normally in a Zero position, a rackconnected to the fabric frame and intermeshing with said toothed wheel,a slidable bar carrying said toothed wheel, a rotary adjusting spindle,a screw device connecting said bar and spindle and arranged to produce asliding motion of the bar when the spindle is rotated, an adjustingwheel gear" ing for imparting to said spindle a variable rotatingmovement according to the desired stitch length, selecting means forcontrolling said ad'usting wheel gearing, a acquard card for controllingsaid selecting means, a positioning lever combined with said fabricposition determining wheel, a locking slide on said positioning leverfor detachably connecting it with said wheel, means for controlling saidlocking slide to cause discon nection between said wheel and lever, apawl device arranged to be engaged with said fabric position determiningwheel when the positioning lever is disconnected from said wheel,acquard card controlled means for actuating said pawl device to cause itto move the positioning lever relatively to the fabric positiondetermining wheel when it is engaged with the latter, a positioningmember arranged to cooperate with said positioning lever and to bring itback to its starting or zero position, together with said wheel, inorder to position the fabric frame by means of said rack, and automaticdriving means for positively actuating said positioning member,substantially as described.

8. in embroidering machines, a jacquard mechanism for moving the fabricframe comprising for each stitch component direction a fabric framepositioning gear normally in a Zero position, loose interconnectingmeans between said gear and the fabric frame, means for adjusting saidpositioning gear according to the desired stitch length from its Zeroposition independently of the fabric frame, selecting means forcontrolling said adjusting means, a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear determined position, change device in combination with saidpositioning gear for causing an additional adjustment thereof by anextent corresponding to an adapted maximum stitch length, when thedesired stitch length exceeds this maximum limit, a pantographcontrolled adjusting mechanism, releasable interlocking means connectingsaid pantograph controlled adjusting mechanism with said fabric framepositioning gear, stitch determining means arranged to be operated bysaid pantograph mechanism, and a jacquard card punching mechanismdependent on said stitch determining means, and connected to saidpantograph controlled adjusting mechanism as well as to said changedevice of the jacquard mechanism, substantially as described.

9. In embroidering machines, a jacquard mechanism for moving the fabricframe comprising for each stitch component direction a fabric framepositioning gear normally in a zero position, loose interconnectingmeans between said gear and the fabric frame, means for adjusting saidpositioning gear according to the desired stitch length from its Zeroposition independently of the fabric frame, selecting means forcontrolling said adjusting means, a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear determined position, a change device in combination witn saidpositioning gear for causing an additional adjustment thereof by anextent corresponding to an adapted maximum stitch length, when thedesired stitch len 'th exceeds this maximum limit, a pantographcontrolled adjusting mechanism having a movable bar, an adjusting gear,an interlocking device between them for allowing of the adjustment ofsaid bar under the control of the pantograph, and an automaticallycontrolled shifting lever for said adjusting gear designed to operatewhen said bar has been adjusted beyond a maximum limit strokecorresponding to the adopted maximum stitch length, stitch determiningmeans, actuating means for the fabric frame positioning gear and saidstitch determining means, interconnecting means between said movable barand said actuating means to determine the movement thereof by an extentcorrespond ing to the position of said bar, and a jac quard cardpunching mechanism dependent on said stitch determining means andconnected to said shifting lever of the pantograph controlled adjustingmechanism as well as to said change device of the jacquard card,substantially as described.

10. in embroidering machines, a jacquard mechanism for moving the fabricframe comprising for each stitch component direction a fabric framepositioning gear normally in a zero position, loose interconnectingmeans between said gear and the fabric frame, means for adjusting saidpositioning gear according to the desired stitch length from its zeroposition independently of the fabric frame, selecting means forcontrolling said adjusting means, a jacquard card for controlling saidselecting means, automatic control means for engaging saidinterconnecting means to bring the fabric frame up to the positioninggear deter ained position, a jacquard card controlled change device incombination with said positioning gear for causing an additionaladjustment thereof by an extent corresponding to an adopted maximumstitch length, when the desired stitch length exceeds this maximumlimit, a pantograph controlled adjusting mechanism hav ing a movablebar, an adjusting gear and an interlocking device between them forallowing of the adjustment of said bar under the control of thepantograph, stitch determining means, actuating means for the fabricframe positioning gear and said stitch determining means,interconnecting means between said movable bar and said actuating meansto determine the movement thereof by an extent corresponding to theposition of said bar, a acquard card punching mechanism dependent onsaid stitch determining means, additional means in s id pantographcontrolled adjusting mechanism and jacquard card punching mechanism forcausing the punching of the holes in the jacquard card when the baradjustment under the control of the pantograph exceeds the adoptedmaximum stitcli length, substantially as described.

ln witness whereof I have hereunto signed my name this 30th day of li'arch 1912 in the presence of two subscribing witnesses.

KARL KELLER. lVitnesses D. l. MURPHY, EDWIN KoLLnn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patenlts,

Va shington, D. C.

